A real-time system executing four different periodic tasks Ti(pt) is given with p and t representing the period and the execution time of the task, respectively. Each task's deadline matches its period p. The system is executing the following set of tasks: S = {T₁(10, 2), T₂(4, 1), T3(10, 3), T4(7,1)). Is this real-time system schedulable under Rate-Monotonic (RM) scheduling? Is this real-time system schedulable under Earliest Deadline First (EDF) scheduling? Explain your answers using the concept of the overall CPU utilization.

A real-time system executing four different periodic tasks Ti(pt) is given with p and t representing the period and the execution time of the task, respectively. Each task's deadline matches its period p. The system is executing the following set of tasks: S = {T₁(10, 2), T₂(4, 1), T3(10, 3), T4(7,1)). Is this real-time system schedulable under Rate-Monotonic (RM) scheduling? Is this real-time system schedulable under Earliest Deadline First (EDF) scheduling? Explain your answers using the concept of the overall CPU utilization.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Software cost estimation

In software engineering, cost estimation defines the calculation of the amount spent on software development and testing. This includes maintenance, managing, buying equipment, user requirement reviews, software, training, and servers. Many methods are developed to estimate the software project cost. Software cost estimation has a major impact on planning and managing a project. The software cost estimation has three estimates like project duration(time), effort(person-month), and cost(dollars).

Question

A real-time system executing four different periodic tasks Ti(pt) is given
with p and t representing the period and the execution time of the task,
respectively. Each task's deadline matches its period p. The system is
executing the following set of tasks: S = {T₁(10, 2), T₂(4, 1), T3(10, 3), T4(7, 1)}.
Is this real-time system schedulable under Rate-Monotonic (RM) scheduling?
Is this real-time system schedulable under Earliest Deadline First (EDF)
scheduling? Explain your answers using the concept of the overall CPU
utilization.

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